Chemo‐Mechanical Coupling in Fractured Shale With Water and Hydrocarbon Flow
| العنوان: | Chemo‐Mechanical Coupling in Fractured Shale With Water and Hydrocarbon Flow |
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| المؤلفون: | Claudio Petrini, Stefan Wiemer, Takeshi Kurotori, Ronny Pini, Quinn Wenning, Alba Zappone, Claudio Madonna, Junyoung Hwang, Domenico Giardini |
| المصدر: | Geophysical Research Letters, 48 (5) |
| بيانات النشر: | American Geophysical Union (AGU), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Chemo mechanical, Flow (psychology), carbon capture and storage, Fracture flow, Coupling (electronics), swelling, self‐sealing, fracture flow, X‐ray Computed Tomography, Geophysics, Hydrocarbon, chemistry, Carbon capture and storage, medicine, General Earth and Planetary Sciences, Composite material, Swelling, medicine.symptom, Oil shale, Geology |
| الوصف: | The transport of chemically reactive fluids through fractured clay-rich rocks is fundamental to many subsurface engineering technologies. Here, we present results of direct-shear laboratory experiments with simultaneous imaging by X-ray Computed Tomography in Opalinus claystone with subsequent fluid injection to unravel the interplay between mechanical fracture deformation, fluid sorption, and flow. Under constant radial stress (σc = 1.5 MPa), the average mechanical aperture (Formula presented.) increases with shear displacement. Upon brine injection, (Formula presented.) is reduced by 40% relative to initial conditions ((Formula presented.) μm) and fluid-sorption induces a divergent displacement of the two sample halves (Δh = ±50 − 170 μm) quantified by digital image correlation. None of these changes are observed in a control experiment with decane, indicating that creep is subordinate to swelling in sealing the fracture. Swelling-induced changes in permeability within the fracture are heterogeneous and largely affect the fracture flow field, as computed using numerical simulations. Geophysical Research Letters, 48 (5) ISSN:0094-8276 ISSN:1944-8007 |
| وصف الملف: | application/application/pdf |
| تدمد: | 1944-8007 0094-8276 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22e58aa95495b498b61abb009e1d902dTest https://doi.org/10.1029/2020gl091357Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....22e58aa95495b498b61abb009e1d902d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19448007 00948276 |
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